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Altera_Forum's avatar
Altera_Forum
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12 years ago

FIFOED Avaloun UART and DMA with QSYS

Hi I have a legacy design that was generated using Quartus 8.1. the design includes SOPC builder system that uses the FIFOED Avalon UART version 9.3. recently I've upgraded to Quartus 12.0 s...
Altera_Forum's avatar
Altera_Forum
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11 years ago

Hi,

I do not know if you figure out a solution. I am interested in hearing about your design. I am adding a UART to a 13.0sp1 design. There seems to be two options available, a free one Avalon UART and a purchased one UART_16550. Both seem to need a DMA connected be used in a full system. The UART_16550 has a small TX and RX FIFO 16 bytes, but this would still but too big a load on the NIOS. Any reference designs for UART and DMA?

Thanks